1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
# -*- coding: utf-8 -*-
# This file is part of pygal
#
# A python svg graph plotting library
# Copyright © 2012-2016 Kozea
#
# This library is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with pygal. If not, see <http://www.gnu.org/licenses/>.
"""Dual chart base. Dual means a chart with 2 scaled axis like xy"""
from pygal.graph.graph import Graph
from pygal.util import compute_scale, cut
class Dual(Graph):
_dual = True
def _value_format(self, value):
"""
Format value for dual value display.
"""
return '%s: %s' % (self._x_format(value[0]), self._y_format(value[1]))
def _compute_x_labels(self):
x_pos = compute_scale(
self._box.xmin, self._box.xmax, self.logarithmic, self.order_min,
self.min_scale, self.max_scale
)
if self.x_labels:
self._x_labels = []
for i, x_label in enumerate(self.x_labels):
if isinstance(x_label, dict):
pos = self._x_adapt(x_label.get('value'))
title = x_label.get('label', self._x_format(pos))
elif isinstance(x_label, str):
pos = self._x_adapt(x_pos[i % len(x_pos)])
title = x_label
else:
pos = self._x_adapt(x_label)
title = self._x_format(pos)
self._x_labels.append((title, pos))
self._box.xmin = min(self._box.xmin, min(cut(self._x_labels, 1)))
self._box.xmax = max(self._box.xmax, max(cut(self._x_labels, 1)))
else:
self._x_labels = list(zip(map(self._x_format, x_pos), x_pos))
def _compute_x_labels_major(self):
# In case of dual, x labels must adapters and so majors too
self.x_labels_major = self.x_labels_major and list(
map(self._x_adapt, self.x_labels_major)
)
super(Dual, self)._compute_x_labels_major()
def _get_x_label(self, i):
"""Convenience function to get the x_label of a value index"""
return
|
